food security

粮食安全
  • 文章类型: Journal Article
    粮食安全是当前世界发展进程中的重要问题之一。文章以我国31个省(区、市)为研究对象,从定量安全、营养安全,生态安全,和容量安全。使用熵方法,计算了2013年至2022年十年的中国粮食安全指数。总的来说,中国的粮食安全水平在这十年中呈上升趋势,与山东各省,黑龙江,河南的安全级别最高。利用Dagum基尼系数及其分解,考察了七个地区粮食安全的分布动态及其时空演变,验证了不同地区粮食安全的绝对趋同和条件趋同。研究结果表明,华东地区各省之间的粮食安全水平差距最大,并且存在绝对β收敛。把中国作为一个整体来看,其粮食安全水平的发展具有显著的趋同特征,这意味着粮食安全水平低的省份将比粮食安全水平高的省份有更快的增长速度,导致各省之间粮食安全水平的差距逐步缩小。
    Food security is one of the important issues in the current world development process. The article takes 31 provinces (districts and cities) in China as the research object and constructs a multidimensional food security level evaluation index system from four dimensions: quantitative security, nutritional security, ecological security, and capacity security. Using the entropy method, China\'s food security index was calculated for the ten-year period from 2013 to 2022. Overall, China\'s food security level showed an upward trend during the decade, with the provinces of Shandong, Heilongjiang, and Henan having the highest level of security. The distribution dynamics of food security and its spatiotemporal evolution in the seven regions were examined using the Dagum Gini coefficient and its decomposition, and the absolute and conditional convergence of food security in the different areas was verified. The results of the study show that the provinces within East China have the largest gap in food security levels between them, and there is absolute β-convergence. Looking at China as a whole, the development of its food security level is characterized by significant convergence, which means that provinces with a low level of food security will have a faster rate of growth than those with a high level of food security, resulting in a gradual narrowing of the gap in food security levels between provinces.
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  • 文章类型: Journal Article
    在发展中国家,孤儿豆科植物在应对气候变化的斗争中处于最前沿。它们的高营养价值对营养不良和慢性疾病的预防至关重要。然而,正如“孤儿”定义所暗示的那样,他们的种子系统仍然被低估,种子产量很少。种子引发是一种有效的,提高孤儿豆科植物种子质量的可持续战略,需要最新的指导方针来保证可靠和可重复的结果。我们沿着这条路走了多远?我们对种子启动有什么期望?这带来了其他相关问题。ThecasestudyoftheBENEFIT-Med(Boostingtechnologiesoforphanlegomestowardrestronmentalsystems)project,由多学科研究网络开发,设想了一个生产新知识和创新技术的路线图,以通过启动提高种子生产力,长期目标是促进气候敏感地区的可持续性和粮食安全。这篇评论强调了在孤儿豆类达到“气候适宜作物”状态之前必须克服的现有缺点。只有通过种子生物学知识的整合,技术和农学,可以克服研究平台和当地农业领域之间存在的障碍,为孤儿豆类产生高影响力的技术创新。我们打算提供一个强有力的信息,鼓励未来根据联合国2030年可持续发展议程进行研究。
    In developing countries, orphan legumes stand at the forefront in the struggle against climate change. Their high nutrient value is crucial in malnutrition and chronic diseases prevention. However, as the \'orphan\' definition suggests, their seed systems are still underestimated and seed production is scanty. Seed priming is an effective, sustainable strategy to boost seed quality in orphan legumes for which up-to-date guidelines are required to guarantee reliable and reproducible results. How far are we along this path? What do we expect from seed priming? This brings to other relevant questions. What is the socio-economic relevance of orphan legumes in the Mediterranean Basin? How to potentiate a broader cultivation in specific regions? The case study of the BENEFIT-Med (Boosting technologies of orphan legumes towards resilient farming systems) project, developed by multidisciplinary research networks, envisions a roadmap for producing new knowledge and innovative technologies to improve seed productivity through priming, with the long-term objective of promoting sustainability and food security for/in the climate-sensitive regions. This review highlights the existing drawbacks that must be overcome before orphan legumes could reach the state of \'climate-ready crops\'. Only by the integration of knowledge in seed biology, technology and agronomy, the barrier existing between research bench and local agricultural fields may be overcome, generating high-impact technical innovations for orphan legumes. We intend to provide a powerful message to encourage future research in line with the United Nations Agenda 2030 for Sustainable Development.
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  • 文章类型: Journal Article
    背景:解决土著粮食安全和粮食主权问题需要采取社区驱动的战略,以改善传统和当地粮食的获取和供应。整合土著领导的参与性方法支持了成功的计划实施。学习圈:当地健康食品到学校是一个参与性计划,召集包括食品生产者在内的一系列利益相关者,教育者和知识守护者计划,实施和监测当地食品系统的行动。在HaidaGwaii的试点工作(2014-2015年),不列颠哥伦比亚省(BC),在加强当地和传统食物获取方面,学习圈(LC)方法取得了有希望的成果,青年和青少年的知识和技能。因此,当前评估的目的是研究在海达民族内部纵向扩大LC的过程;并横向跨越三个不同的原住民背景:GitxsanNation,Hazelton/UpperSkeena,BC;Ministikwan湖Cree国家,萨斯喀彻温省;黑河原住民,2016年至2019年之间的曼尼托巴。
    方法:实现科学框架,福斯特-菲什曼和沃森(2012)ABLE变革框架,用于将LC理解为促进社区能力建设以加强当地粮食系统的参与性方法。面试(n=52),对会议摘要(n=44)和跟踪表(n=39)进行了主题分析。
    结果:LC促进了一个合作过程,以:(1)建立优势并探索增加准备和能力的方法,以回收传统和当地的粮食系统;(2)加强与土地的联系,社区一级的行动和多部门伙伴关系;(4)通过振兴传统食品推动非殖民化行动;(5)改善学校社区对当地健康和传统食品的供应和评价;(6)通过实现粮食主权和粮食安全的步骤促进整体健康。HaidaGwaii内部的扩大规模支持了不断增长的,强大的当地和传统食品系统,并增强了海达的领导力。这种方法在其他原住民环境中运作良好,尽管基线能力和冠军的存在是有利因素。
    结论:研究结果强调了LC是一种参与式方法,可以在社区粮食系统中建立能力并支持迭代计划行动。确定的优势和挑战支持扩展的机会,在其他具有不同粮食系统的土著社区采用和修改LC方法。
    BACKGROUND: Addressing Indigenous food security and food sovereignty calls for community-driven strategies to improve access to and availability of traditional and local food. Participatory approaches that integrate Indigenous leadership have supported successful program implementation. Learning Circles: Local Healthy Food to School is a participatory program that convenes a range of stakeholders including food producers, educators and Knowledge Keepers to plan, implement and monitor local food system action. Pilot work (2014-2015) in Haida Gwaii, British Columbia (BC), showed promising results of the Learning Circles (LC) approach in enhancing local and traditional food access, knowledge and skills among youth and adolescents. The objective of the current evaluation was therefore to examine the process of scaling-up the LC vertically within the Haida Nation; and horizontally across three diverse First Nations contexts: Gitxsan Nation, Hazelton /Upper Skeena, BC; Ministikwan Lake Cree Nation, Saskatchewan; and Black River First Nation, Manitoba between 2016 and 2019.
    METHODS: An implementation science framework, Foster-Fishman and Watson\'s (2012) ABLe Change Framework, was used to understand the LC as a participatory approach to facilitate community capacity building to strengthen local food systems. Interviews (n = 52), meeting summaries (n = 44) and tracking sheets (n = 39) were thematically analyzed.
    RESULTS: The LC facilitated a collaborative process to: (1) build on strengths and explore ways to increase readiness and capacity to reclaim traditional and local food systems; (2) strengthen connections to land, traditional knowledge and ways of life; (3) foster community-level action and multi-sector partnerships; (4) drive actions towards decolonization through revitalization of traditional foods; (5) improve availability of and appreciation for local healthy and traditional foods in school communities; and (6) promote holistic wellness through steps towards food sovereignty and food security. Scale-up within Haida Gwaii supported a growing, robust local and traditional food system and enhanced Haida leadership. The approach worked well in other First Nations contexts, though baseline capacity and the presence of champions were enabling factors.
    CONCLUSIONS: Findings highlight LC as a participatory approach to build capacity and support iterative planning-to-action in community food systems. Identified strengths and challenges support opportunities to expand, adopt and modify the LC approach in other Indigenous communities with diverse food systems.
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  • 文章类型: Journal Article
    抗性淀粉(RS)是一种膳食纤维,可抵抗小肠中的淀粉水解,并在结肠中被微生物发酵。RS不仅在食品和非食品行业具有广泛的益处,而且对促进健康和预防非传染性疾病具有重要影响。从环境友好的角度来看,RS类型3和5一直是研究的重点。RS3通常通过物理改性后的再结晶形成,而RS5是通过热机械方法通过淀粉和脂肪酸的络合获得的。这篇综述提供了基于绿色技术的RS3和RS5制剂的更新和方法,以促进RS含量。这些信息将有助于未来对RS开发的研究以及确定功能食品的制备方法。
    Resistant starch (RS) is a dietary fiber that resists starch hydrolysis in the small intestine, and is fermented in the colon by microorganisms. RS not only has a broad range of benefits in the food and non-food industries but also has a significance impact on health promotion and prevention of non-communicable diseases. RS types 3 and 5 have been the focus of research from an environment-friendly perspective. RS3 is normally formed by recrystallization after physical modification, whereas RS5 is obtained by the complexation of starch and fatty acids through the thermomechanical methods. This review provides updates and approaches to RS3 and RS5 preparations that promote RS content based on green technologies. This information will be useful for future research on RS development and for identifying preparation methods for functional food.
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  • 文章类型: Journal Article
    在高收入国家的低社会经济地区,儿童的粮食不安全可能持续存在。通用免费学校餐(UFSM)计划旨在应对这一紧迫的问题。这项研究旨在对DIATROFI计划对希腊家庭粮食不安全的影响进行多年评估。
    这项研究利用了18,716名学生(618名幼儿园至高中)的数据,在2012年至2019年期间,来自低社会经济领域的UFSM计划DIATROFI。学生家长完成了年度基线和后续纸质自填问卷。主要结果是家庭粮食不安全,在两份问卷中使用粮食安全调查模块(FSSM)进行测量,并通过重复测量的混合线性和逻辑回归模型进行评估。
    学生的平均年龄为9岁(四分位数间距(IQR):6.5,12.0),51.6%(n=9658)是女孩,82.2%(n=15,382)生活在中低社会经济富裕家庭中。一个学年后,粮食不安全的家庭从51.5%(n=9630)下降到47.6%(n=8901)。粮食不安全评分连续四年稳步下降,与基线得分相比(一年b:-0.26;95%置信区间(CI):-0.30,-0.22和四年-1.28;-1.53,-1.03)。保留食物不安全状态的可能性从参与一年后的17%(赔率(OR):0.83;95%CI:0.79,0.87)降低到参与四年后的36%(0.64;0.49,0.82)。在父母教育程度低、社会经济富裕程度低的家庭中,该方案对减轻家庭粮食不安全的影响更大。
    DIATROFI计划有效地改善了希腊社会经济危机期间和之后的家庭粮食安全。针对贫困学生的学校一级的UFSM计划可以改善家庭粮食不安全状况,随着参与年限的增加,效果更加明显,以及经济困难家庭。
    DIATROFI计划由各种国家和私人组织资助,包括国家县当局,希腊支付当局,慈善/慈善组织,和私人公司。
    UNASSIGNED: Childhood food insecurity can persist among low socioeconomic areas in high-income countries. Universal Free School Meal (UFSM) programs are designed to respond to this pressing issue. This study aimed to conduct a multi-year evaluation of the DIATROFI Program\'s impact on household food insecurity in Greece.
    UNASSIGNED: This study utilized data from 18,716 students (618 kindergarten to high schools), from low socioeconomic areas participating in the school-level UFSM Program DIATROFI between 2012 and 2019. Parents of students completed annual baseline and follow-up paper-based self-completed questionnaires. The primary outcome was household food insecurity, measured using the Food Security Survey Module (FSSM) at both questionnaires, and evaluated through mixed linear and logistic regression models with repeated measurements.
    UNASSIGNED: Students\' median age was 9 years old (Interquartile range (IQR): 6.5, 12.0), 51.6% (n = 9658) were girls, and 82.2% (n = 15,382) lived in low/medium socioeconomic affluence households. Households with food insecurity reduced from 51.5% (n = 9630) to 47.6% (n = 8901) after one school year. Food insecurity score declined steadily for four years of consecutive participation, compared to baseline score (one-year b:-0.26; 95% Confidence Interval (CI):-0.30, -0.22, and four-year -1.28; -1.53, -1.03). The likelihood of retaining food insecure status reduced from 17% after one-year participation (Odds Ratio (OR): 0.83; 95% CI: 0.79, 0.87) to 36% after four-year participation (0.64; 0.49, 0.82). The Program\'s impact on household food insecurity alleviation was greater among households with low parental education and low socioeconomic affluence.
    UNASSIGNED: The DIATROFI Program effectively improved household food security during and after the Greek socioeconomic crisis. School-level UFSM programs targeting underprivileged students can improve household food insecurity, with a more pronounced effect with increased years of participation, and among economically disadvantaged households.
    UNASSIGNED: The DIATROFI Program was funded through various national and private organizations, including national prefecture authorities, Greek payment authorities, philanthropic/charitable organizations, and private companies.
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  • 文章类型: Journal Article
    对可持续发展目标(SDG)进展的最新评估确定了主要障碍,比如气候变化,全球不稳定和流行病,这甚至威胁到到2050年实现可持续发展目标的努力。需要采取紧急行动,特别是减少贫困,饥饿和气候变化。在这种情况下,微藻正在成为一种有希望的解决方案,特别是在粮食安全和环境可持续性方面。作为多才多艺的生物,微藻提供营养益处,如优质蛋白质和必需脂肪酸,并且可以在非耕地地区种植,减少资源竞争,提高粮食系统的可持续性。微藻的作用还包括水产养殖中的其他应用,它们可以作为动物饲料的可持续替代品,在农业方面,它们充当生物肥料和生物兴奋剂。这些微生物在对退化土地的干预中也起着关键作用。稳定土壤,改善水文功能,增加养分和碳利用率。因此,微藻通过促进可持续农业实践和促进土地恢复和碳固存努力来支持几个可持续发展目标。微藻在这些地区的整合对于减轻环境影响和改善全球粮食安全至关重要,强调需要增加研究和开发,以及公众和政治支持,充分发挥其潜力来推进可持续发展目标。
    The latest assessment of progress towards the Sustainable Development Goals (SDGs) has identified major obstacles, such as climate change, global instability and pandemics, which threaten efforts to achieve the SDGs even by 2050. Urgent action is needed, particularly to reduce poverty, hunger and climate change. In this context, microalgae are emerging as a promising solution, particularly in the context of food security and environmental sustainability. As versatile organisms, microalgae offer nutritional benefits such as high-quality proteins and essential fatty acids, and can be cultivated in non-arable areas, reducing competition for resources and improving the sustainability of food systems. The role of microalgae also includes other applications in aquaculture, where they serve as sustainable alternatives to animal feed, and in agriculture, where they act as biofertilizers and biostimulants. These microorganisms also play a key role in interventions on degraded land, stabilizing soils, improving hydrological function and increasing nutrient and carbon availability. Microalgae therefore support several SDGs by promoting sustainable agricultural practices and contributing to land restoration and carbon sequestration efforts. The integration of microalgae in these areas is essential to mitigate environmental impacts and improve global food security, highlighting the need for increased research and development, as well as public and political support, to exploit their full potential to advance the SDGs.
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  • 文章类型: Journal Article
    干旱对全球粮食安全构成重大挑战,需要全面了解植物分子反应才能有效缓解策略。表观遗传修饰,如DNA甲基化和组蛋白修饰,是调节干旱反应所必需的基因和激素的关键。虽然microRNAs(miRNAs)主要在转录后调控基因表达,它们还可以与表观遗传途径相互作用,作为影响染色质重塑的潜在效应物。尽管miRNA在表观遗传记忆中的作用仍在探索中,了解它们对干旱响应的贡献需要检查这些对表观遗传修饰的间接影响。这项探索的一个关键方面是适应干旱的植物的表观遗传记忆,提供对适应性性状的跨代遗传的见解。了解控制这些表观遗传印记的维持和消除的机制提供了对植物如何平衡其表观基因组的稳定性和灵活性的细致入微的见解。一个主要的重点是激素途径之间的动态相互作用-例如脱落酸(ABA),乙烯,Jasmonates,以及水杨酸(SA)和表观遗传机制。这种相互作用对于在干旱胁迫期间微调基因表达至关重要,导致生理和形态适应,增强植物抗旱性。这篇综述还强调了先进技术的变革潜力,如亚硫酸氢盐测序和CRISPR-Cas9,在提供全面的见解植物对水分亏缺条件的反应。这些技术为发展耐旱作物铺平了道路,这对可持续农业至关重要。
    Drought significantly challenges global food security, necessitating a comprehensive understanding of plant molecular responses for effective mitigation strategies. Epigenetic modifications, such as DNA methylation and histone modifications, are key in regulating genes and hormones essential for drought response. While microRNAs (miRNAs) primarily regulate gene expression post-transcriptionally, they can also interact with epigenetic pathways as potential effectors that influence chromatin remodeling. Although the role of miRNAs in epigenetic memory is still being explored, understanding their contribution to drought response requires examining these indirect effects on epigenetic modifications. A key aspect of this exploration is epigenetic memory in drought-adapted plants, offering insights into the transgenerational inheritance of adaptive traits. Understanding the mechanisms that govern the maintenance and erasure of these epigenetic imprints provides nuanced insights into how plants balance stability and flexibility in their epigenomes. A major focus is on the dynamic interaction between hormonal pathways-such as those for abscisic acid (ABA), ethylene, jasmonates, and salicylic acid (SA)-and epigenetic mechanisms. This interplay is crucial for fine-tuning gene expression during drought stress, leading to physiological and morphological adaptations that enhance plant drought resilience. This review also highlights the transformative potential of advanced technologies, such as bisulfite sequencing and CRISPR-Cas9, in providing comprehensive insights into plant responses to water deficit conditions. These technologies pave the way for developing drought-tolerant crops, which is vital for sustainable agriculture.
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  • 文章类型: Journal Article
    残疾人更有可能有较差的生计结果,包括粮食不安全。年轻残疾妇女的不平等现象加剧,尤其是在危机时期。
    了解在冠状病毒大流行(COVID-19)期间,有残疾和无残疾的南非年轻女性的生计经历。
    我们对在eThekwini的大专院校就读的72名有残疾和无残疾的年轻女性进行了一项纵向研究,南非。我们进行了一系列深入访谈,收集定量和定性数据,提示参与者在COVID-19大流行期间的经历,包括生活安排,对教育的影响,获取资源和粮食安全。
    参与者报告了与生活安排有关的生计变化,教育,收入,以及大流行期间的社会联系。社会补助金(养老金,儿童支持,残疾补助金)和学生津贴是确保粮食安全的重要财政资源。残疾参与者更有可能经历食物不安全感和适度饥饿,他们的家庭获得土地或牲畜等缓解资源的机会较少。聋人参与者还报告了社会孤立。
    该研究表明,社会保护机制减轻了封锁对所有接受者的财务影响,但残疾参与者仍然比其他人更加努力确保粮食安全。这些额外的挑战可能与先前存在的不平等有关,残疾参与者及其家庭获得自然资源和金融稳定的机会较少。
    本文着重于有残疾和无残疾的年轻女性,并提供了对她们经历的异同的见解。
    UNASSIGNED: Persons with disabilities are more likely to have poorer livelihood outcomes, including food insecurity. Inequalities are heightened for young women with disabilities, especially in times of crisis.
    UNASSIGNED: To understand the livelihood experience of young South African women with and without disabilities during the coronavirus pandemic (COVID-19).
    UNASSIGNED: We conducted a longitudinal study with 72 young women with and without disabilities enrolled in tertiary institutions in eThekwini, South Africa. We undertook a series of in-depth interviews collecting quantitative and qualitative data, prompting participants\' experiences during the COVID-19 pandemic, including living arrangements, impact on education, access to resources and food security.
    UNASSIGNED: Participants reported livelihood changes related to living arrangements, education, income, and social connectedness during the pandemic. Social grants (old-age pension, child support, disability grant) and student stipends were critical financial resources to ensure food security. Participants with disabilities were more likely to experience food insecurities and moderate hunger, with their households having less access to mitigating resources such as land or livestock. Deaf participants also reported social isolation.
    UNASSIGNED: The study shows that social protection mechanisms mitigated the financial impact of the lockdown for all recipients but that participants with disabilities still struggled more than others to ensure food security. These additional challenges may be related to pre-existing inequalities, with participants with disabilities and their households having less access to natural resources and financial stability.
    UNASSIGNED: This paper focuses on young women with and without disabilities and provides insight into the similarities and differences in their experiences.
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  • 文章类型: Journal Article
    农业劳动力向非农部门的转移与中国经济发展同步,导致劳动力成本相对于资本的大幅上升。因此,农业生产已经向资本密集型做法转变。资本深化与中国粮食产量的大幅增加相吻合,而中国粮食产量中资本深化的主要原因却知之甚少。本研究考察了各种资本投资的增加对中国主产区粮食产量增长和增长收敛的影响。基于从农产品成本效益数据汇编(CCBDAP)数据集中收集的数据。结果表明,化肥用量的增加,农药和机械投入对粮食增产起到了关键作用。对于早稻,粳稻,小麦和玉米,平均土地产出具有β收敛。这些发现表明,更多的资本投资应该加速单位土地粮食产量的增长,以实行耕地占补跨省均衡制度为契机。此外,建议对粮食种植空间分布进行战略调整,以最大限度地利用有限的耕地资源,同时坚持国家粮食安全目标。
    The shift of agricultural labor force to non-agricultural sectors has paralleled China\'s economic development, leading to a substantial rise in labor costs relative to capital. Consequently, the agricultural production has witnessed a shift towards capital-intensive practices. The capital deepening coincides with the significant increase in China\'s grain output while the main cause of capital deepening in China\'s grain production is poorly understood. This study examines the effect of increasing in various capital investments on the grain yield growth and growth convergence in China\'s main production areas, based on the data collected from the data set of the Compilation of Cost-Benefit Data of Agricultural Products (CCBDAP). Results show that the increases of chemical fertilizer, pesticide and machinery input have played key roles in the increase of grain yield. For early indica rice, japonica rice, wheat and maize, the average land output bears a β convergence. These findings suggest that more capital investments are supposed to accelerate the growth of grain yield per unit of land, take the opportunity of practicing the cross-provincial balance system of occupation and compensation of cultivated land. Moreover, strategic adjustments to the spatial distribution of grain cultivation are recommended to maximize the utilization of limited arable land resources while upholding national food security objectives.
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  • 文章类型: Journal Article
    许多发展中国家仍然存在重大的采后损失和食品安全问题,主要是由于真菌活动,包括霉菌毒素的生产。在这项研究中,绿色合成氧化锌纳米颗粒(ZnO-NPs)是由紫胶叶提取物(ZnO1),Lippiajavanica(ZnO2),Bidenspilosa(ZnO3),和Ximeniacaffra(ZnO4)。使用X射线衍射(XRD)测定ZnO-NP的物理化学特性,傅里叶透射红外光谱和紫外-可见(UV-vis)光谱,扫描电子显微镜(SEM),和透射电子显微镜(TEM)。XRD分析证实了在ZnO纳米颗粒(NPs)的六边形形状中存在纤锌矿晶体结构,平均尺寸在25到43nm之间。形态的显微镜检查显示存在直径为37至47nm的球形颗粒。评估了ZnO-NP对病原植物真菌的抗真菌功效,包括Botrytissp.(STEU7866),青霉。(STEU7865),andPiliellagranati(STEU7864),使用有毒食物技术。使用肉汤微量稀释测定对ZnOP进行进一步的抗真菌评估。观察到ZnO-NP的类型和真菌物种之间的显着相互作用,在Mucorsp中具有最高的敏感性。对ZnO2,达到50%以上的抑制作用。青霉。还显示出对所有ZnO-NP的高敏感性。分子对接结果证实了ZnO-NP与Mucorsp中真菌受体的强H键相互作用。和青霉菌sp.,Botrytissp.和P.granati表现出最小的易感性。进一步的试验表明,ZnO2对葡萄孢菌具有最高的抑制作用。,具有25µg/mL的最低抑制浓度(MIC),归因于其更大的正zeta电位。这项研究表明,ZnONPs,特别是那些使用Lippiajavanica(ZnO2)介导的具有作为有效抗真菌药物的潜力,这可以在减少采后腐烂和损失方面发挥重要作用。
    Significant postharvest losses and food safety issues persist in many developing nations, primarily due to fungal activities, including mycotoxin production. In this study, green synthesised zinc oxide nanoparticles (ZnO-NPs) were prepared from leaf extracts of Syzygium cordatum (ZnO 1), Lippia javanica (ZnO 2), Bidens pilosa (ZnO 3), and Ximenia caffra (ZnO 4). Physicochemical characteristics of the ZnO-NPs were determined using X-ray diffraction (XRD), Fourier transmission Infrared spectroscopy and ultraviolet-visible (UV-vis) spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The XRD analysis confirmed the presence of a wurtzite crystal structure in the hexagonal shape of the ZnO nanoparticles (NPs), with an average size ranging between 25 and 43 nm. The microscopic examination of the morphology revealed the presence of spherical particles with sizes ranging from 37 to 47 nm in diameter. The antifungal efficacy of the ZnO-NPs was assessed against pathogenic plant fungi, including Botrytis sp. (STEU 7866), Penicillium sp. (STEU 7865), and Pilidiella granati (STEU 7864), using the poisoned food technique. Further antifungal evaluation of the ZnOPs was performed using the broth microdilution assay. A significant interaction between the type of ZnO-NPs and fungal species was observed, with the highest susceptibility in Mucor sp. to ZnO 2, achieving over 50% inhibition. Penicillium sp. also showed high susceptibility to all ZnO-NPs. Molecular docking results confirmed the strong H-bonding interactions of ZnO-NPs with fungal receptors in Mucor sp. and Penicillium sp., Botrytis sp. and P. granati exhibited the least susceptibility. Further tests revealed that ZnO 2 exhibited the highest inhibitory effect on Botrytis sp., with a low minimum inhibitory concentration (MIC) of 25 µg/mL, attributed to its larger positive zeta potential. This study indicates that ZnO NPs, particularly those mediated using Lippia javanica (ZnO 2), have promising potential as effective antifungal agents, which could play a significant role in reducing postharvest decay and losses.
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